Air handling units in Hertfordshire
Clear prices and written reports for air handling unit servicing and repairs in Hertfordshire.
- Visit price agreed before we book
- Written report after every visit
- F-gas records updated where required
How much does an air handling unit service cost in Hertfordshire?
In Hertfordshire, expect around £265–£645 per unit, per visit, plus VAT. A typical job (AHU service with filter change) is £265–£645 plus VAT. Any extra work is priced and approved before it starts.
An air handling unit (AHU) is a large central unit that filters, heats, cools and moves air through a building's ductwork, often with heat recovery.
Hertfordshire and surrounding areas
We cover all of Hertfordshire, including Watford, Hemel Hempstead, Stevenage, St Albans and Welwyn Garden City. Each town below has its own page with local guide prices.
Postcode districts we cover include AL1, AL8, EN7, HP4, SG6, SG13, WD6 and WD99. Service and repair visits in Hertfordshire are booked around your opening hours, with the price agreed before we come.
Included as standard
- Filter changes to the specified grade
- Fan, belt and motor checks
- Coil and drip tray cleaning
- Heat recovery device checks
- Repairs, upgrades and full replacement
Air handling units prices in Hertfordshire
Prices below include our regional adjustment for the East of England (8% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| AHU service with filter change | £265–£645 | £318–£774 | per visit |
| Fan / motor replacement | £1,550–£5,350 | £1,860–£6,420 | per fan |
| Full AHU replacement | £16,150–£74,995 | £19,380–£89,994 | per unit |
Ex VAT. Filters are charged at cost for the grade specified.
How we handle air handling units in Hertfordshire
Inspect
We record the AHU type, condition, filter grades and controls.
Service
Filters are changed and components cleaned and checked.
Report
Readings and recommendations are reported.
Upgrade or replace
Where needed, we quote for fan upgrades or replacement.
Points to plan for in Hertfordshire
Hygiene
Drip trays and coils must be kept clean to avoid biological growth.
Roof and height work
Flat roofs, high walls and atriums need the right access equipment and edge protection. We plan towers, MEWPs or scaffold before the job, not on the day.
Energy
Fan upgrades and better controls can cut energy use significantly on older units.
Access and parking
Town-centre jobs in Hertfordshire often come down to access — loading restrictions, parking for the van and getting equipment onto a roof. We check this at survey and plan deliveries around it.
Types of premises we cover in Hertfordshire
- Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
In England, systems holding 5 tonnes CO2 equivalent of refrigerant or more fall under GB F-gas rules, with regular leak checks and records; buildings with more than 12 kW of air conditioning in total also need a periodic energy inspection.
Questions about air handling units in Hertfordshire
How much does an air handling unit service cost in Hertfordshire?
In Hertfordshire, expect about £265–£645 per unit, per visit, plus VAT. A typical job (AHU service with filter change) is £265–£645 plus VAT. Any parts or repairs are priced before we go ahead.
Do you also cover Buckinghamshire, Bedfordshire and London?
Yes. Alongside Hertfordshire, we also cover Buckinghamshire, Bedfordshire and London. Each has its own page with local guide prices.
Can you upgrade old AHU fans?
Yes. EC fan upgrades are a common way to cut energy use without replacing the whole unit.
Do you handle crane lifts?
Yes, we plan craneage, permits and lifting for replacements.
Get a guide price for Hertfordshire
The visit price is agreed before we book. We reply with a guide price or available dates.